load xfsprogs using raw_pkgs
move raw_pkgs under the OS tag
Added code to install xfs file system support for Hadoop/RHEL 6.4 (pebbles).
Merge pull request #145 from Paul-Webster/pull-req-release-pebbles-master-ef54b87b6cefafdef56739c6f15acce66653b7eb

Added code to install xfs file system support for Hadoop/RHEL 6.4 (pebbles). [1/1]